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Huawei Certified Pre-sales Associate-IP Network(Datacom)-ENU Questions 246–250 (page: 51)

Updated On: 10-Feb-2026

Huawei CloudEngine S12700E series modular switches use an architecture that separates the control plane from the switching plane.

  1. TRUE
  2. FALSE

Answer(s): A

Explanation:

Huawei CloudEngine S12700E series modular switches utilize a fully programmable architecture that separates the control plane from the switching plane. This design enhances scalability, performance, and flexibility. It allows the control plane to focus on routing and network management, while the switching plane handles high-speed data forwarding, ensuring optimal network operation. This architecture is a key feature in modern modular switches, enabling advanced functions such as SDN and high-density switching.



Which of the following statements is FALSE about Huawei's AI roaming technology?

  1. Roaming steering policies are inflexible.
  2. It requires STAs to support 802.11v.
  3. It ensures that different types of STAs can obtain the optimal roaming experience and increases the wireless speeds of roaming STAs by 30%.
  4. It supports differentiated steering based on STA profiles.

Answer(s): A

Explanation:

This statement is FALSE because Huawei's AI roaming technology features flexible and intelligent roaming steering policies. These policies adapt dynamically based on the STA (Station) profiles, network conditions, and user requirements. The technology ensures seamless roaming experiences by optimizing decision-making for when and where devices should connect as they move across access points.



Which of the following are factors affecting the wireless rate (throughput) of a Wi-Fi AP? (Choose all that apply.)

  1. CPU performance
  2. Spatial stream
  3. SNR
  4. Frequency bandwidth

Answer(s): B,C,D

Explanation:

Several factors affect the wireless rate (throughput) of a Wi-Fi Access Point (AP):

Spatial stream: The number of spatial streams directly impacts throughput. APs and client devices supporting multiple streams can achieve higher data rates.
SNR (Signal-to-Noise Ratio): A higher SNR improves signal quality, allowing higher modulation schemes and data rates. Poor SNR reduces throughput due to errors and retransmissions.
Frequency bandwidth: Wider bandwidths, such as 40 MHz, 80 MHz, or 160 MHz, allow more data to be transmitted simultaneously, increasing throughput.



Which of the following statements are TRUE about Huawei's wireless backhaul solution for rail transportation? (Choose all that apply.)

  1. The handover delay can be as low as 30 ms.
  2. Highly reliable active-active links are available.
  3. The solution can be used to carry the train control signal system.
  4. Backhaul is unavailable when a train is traveling at 160 km/h.

Answer(s): A,B,C

Explanation:

The handover delay can be as low as 30 ms: Huawei's wireless backhaul solution is optimized for rail transportation and ensures low handover delays to maintain seamless connectivity during high-speed train movement.
Highly reliable active-active links are available: The solution provides active-active links to ensure redundancy and reliability, which is critical for uninterrupted service.
The solution can be used to carry the train control signal system: The high reliability and low latency of Huawei's wireless backhaul solution make it suitable for carrying critical systems like train control signals.



Which of the following statements is TRUE about Huawei's IoT Wi-Fi 6 APs?

  1. Radios used by IoT and Wi-Fi do not transmit on the same channel, so there is no need to consider interference between IoT and Wi-Fi signals.
  2. IoT expansion can be implemented through PCIe cards or USB ports.
  3. The outdoor Wi-Fi 6 AP AirEngine 5761R-11 supports IoT expansion.
  4. Currently, IoT expansion is only available for RFID and Bluetooth protocols.

Answer(s): B

Explanation:

IoT expansion through PCIe cards or USB ports: This allows the APs to support various IoT protocols and devices, enabling flexible IoT integration.



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